Schematics of any technological product?

Hey, I hope I`m using the correct words. It`s a bit hard translating word to word and trying to keep the meaning of sentences.

I have course in uni about automation. (or automatization - in english I understand they mean the same thing)

So I have an assignment. I have to write about some kind of product or process that is automated. It has to be around 20 pages. I have to include schematics of how this product works (technological schematics - translated word to word how its asked)

And as I understand - Schematics how the automatization is achieved.

Basically - not to get into much detail - I need to find all schematics I can on some product.

I was thinking DSLR cameras. But I can`t really find anything.

Is there any site or some correct term I have to search for the schematics ?

This far I havent found anything. Some electrical schemes and stuff like that. But nothing that would be enough to understand how a product works.. What Im concerd about - wether manufacturers publicise this kind of information.